Finding the Fourth Proportional to 268,872.70, 403,211.85 and 135,708.70
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Solution
The fourth proportional to 268,872.70, 403,211.85 and 135,708.70 is: 203,513.99
Step by Step Solution
- Step 1: Write the proportion equation
268,872.70 : 403,211.85 = 135,708.70 : x - Step 2: Convert to fraction form
268,872.70/403,211.85 = 135,708.70/x - Step 3: Cross multiply
268,872.70x = 403,211.85 × 135,708.70 - Step 4: Simplify right side
268,872.70x = 54,719,355,988.10 - Step 5: Solve for x
x = 54,719,355,988.10/268,872.70 - Step 6: Final answer
x = 203,513.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.